I would really like this content to be an essay, not a story. Or I should say, the narrative feels like an essay but it turns out not to be.

Namely, (spoiler) he finds some schematics in the door that would have informed his analysis prior. The fact he didn't just say, "hey you might have this in your door and could be helpful,..." And then proceed to do the analysis with the full information provided from the data.

Secondly, the purging test only compares hot water and "cold" water, and doesn't actually test the duration to get hot water to temperature. That is, is the 25s it takes to get up to temp matter? From the timings in the video it does, but it just felt like he was comparing purging and not, instead of hot water vs cold water.

Thirdly, hows do these advice change for newer models? Surely the dishwasher companies know some of this and can make things better.

I will be taking some of this practices to my dishwasher, but it is a newer Bosch model, and I would imagine I need to do some research to understand what is applicable to my dishwasher.